executing program
BUG: memory leak
unreferenced object 0xffff88810d75a900 (size 232):
  comm "syz-executor879", pid 8462, jiffies 4294942131 (age 13.540s)
  hex dump (first 32 bytes):
    a0 a4 f6 0c 81 88 ff ff a0 a4 f6 0c 81 88 ff ff  ................
    00 00 17 10 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000003e8646a5>] __alloc_skb+0x6d/0x280 net/core/skbuff.c:198
    [<000000009e4696b7>] __napi_alloc_skb+0x67/0x170 net/core/skbuff.c:516
    [<000000001227ba16>] napi_alloc_skb include/linux/skbuff.h:2876 [inline]
    [<000000001227ba16>] napi_get_frags net/core/dev.c:6138 [inline]
    [<000000001227ba16>] napi_get_frags+0x3c/0x80 net/core/dev.c:6133
    [<00000000b0d1d177>] tun_napi_alloc_frags drivers/net/tun.c:1371 [inline]
    [<00000000b0d1d177>] tun_get_user+0xfda/0x1b40 drivers/net/tun.c:1734
    [<00000000dc00aaf4>] tun_chr_write_iter+0x84/0xe0 drivers/net/tun.c:1932
    [<000000005519bfeb>] call_write_iter include/linux/fs.h:1901 [inline]
    [<000000005519bfeb>] new_sync_write+0x1d7/0x2b0 fs/read_write.c:518
    [<00000000d6b78564>] vfs_write+0x34c/0x400 fs/read_write.c:605
    [<00000000fa13b7ac>] ksys_write+0x9d/0x160 fs/read_write.c:658
    [<0000000095ba096f>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<0000000064b66dd4>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810d4b7d00 (size 232):
  comm "syz-executor879", pid 8504, jiffies 4294942716 (age 7.690s)
  hex dump (first 32 bytes):
    a0 3c 92 0e 81 88 ff ff a0 3c 92 0e 81 88 ff ff  .<.......<......
    00 40 81 13 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
  backtrace:
    [<000000003e8646a5>] __alloc_skb+0x6d/0x280 net/core/skbuff.c:198
    [<000000009e4696b7>] __napi_alloc_skb+0x67/0x170 net/core/skbuff.c:516
    [<000000001227ba16>] napi_alloc_skb include/linux/skbuff.h:2876 [inline]
    [<000000001227ba16>] napi_get_frags net/core/dev.c:6138 [inline]
    [<000000001227ba16>] napi_get_frags+0x3c/0x80 net/core/dev.c:6133
    [<00000000b0d1d177>] tun_napi_alloc_frags drivers/net/tun.c:1371 [inline]
    [<00000000b0d1d177>] tun_get_user+0xfda/0x1b40 drivers/net/tun.c:1734
    [<00000000dc00aaf4>] tun_chr_write_iter+0x84/0xe0 drivers/net/tun.c:1932
    [<000000005519bfeb>] call_write_iter include/linux/fs.h:1901 [inline]
    [<000000005519bfeb>] new_sync_write+0x1d7/0x2b0 fs/read_write.c:518
    [<00000000d6b78564>] vfs_write+0x34c/0x400 fs/read_write.c:605
    [<00000000fa13b7ac>] ksys_write+0x9d/0x160 fs/read_write.c:658
    [<0000000095ba096f>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<0000000064b66dd4>] entry_SYSCALL_64_after_hwframe+0x44/0xa9